Add a function in Golbal.js,but reply "object expected" when running

[micccn]

I add a function such as below into Golbal.js:

function alertq(){
alert('!!!');
}

And I add codes as below into the onLoad() function of Account:

{alertq();}

But when I open a Account in CRM 3.0,it alert a Error,like:

"self-defined event of this field error
onLoad()
object Expected."

Who could help me? Thanks!